Mechanical properties of Sn-Bi-In-Ga low melting temperature solder alloys

Chih Han Yang, Shiqi Zhou, Hiroshi Nishikawa, Shih Kang Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The brittle phase in Sn-58Bi significantly degrades the reliability of electronic products. Doping effective element in Sn-58Bi solder is the common approach for improving the mechanical properties. In this study, the Bi ratio was decreased and minor In were doped depending on CALPHAD results. In addition, minor Ga was doped into the solder and formed the Sn-Bi-In-Ga quaternary system. The microstructure showed the Sn phase proportion was higher than Sn-58Bi solder and it is rich some amount of In and Ga. Moreover, Ga gathered in the micro-Area. In tensile test, the new solder showed high yield strength, tensile strength and much better elongation than Sn-58Bi solder.

Original languageEnglish
Title of host publication2018 International Conference on Electronics Packaging and iMAPS All Asia Conference, ICEP-IAAC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages409-410
Number of pages2
ISBN (Electronic)9784990218850
DOIs
Publication statusPublished - 2018 Jun 6
Event2018 International Conference on Electronics Packaging and iMAPS All Asia Conference, ICEP-IAAC 2018 - Kuwana, Mie, Japan
Duration: 2018 Apr 172018 Apr 21

Publication series

Name2018 International Conference on Electronics Packaging and iMAPS All Asia Conference, ICEP-IAAC 2018

Other

Other2018 International Conference on Electronics Packaging and iMAPS All Asia Conference, ICEP-IAAC 2018
Country/TerritoryJapan
CityKuwana, Mie
Period18-04-1718-04-21

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Polymers and Plastics

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